CN103312444A - Method and device for sending and receiving instruction information - Google Patents
Method and device for sending and receiving instruction information Download PDFInfo
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- CN103312444A CN103312444A CN201210070674XA CN201210070674A CN103312444A CN 103312444 A CN103312444 A CN 103312444A CN 201210070674X A CN201210070674X A CN 201210070674XA CN 201210070674 A CN201210070674 A CN 201210070674A CN 103312444 A CN103312444 A CN 103312444A
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Abstract
The invention discloses a method and a device for sending and receiving instruction information; and the method comprises the steps: configuring the instruction information by a base station, wherein the instruction information is used for indicating whether a user terminal sends an aperiodic sounding reference signal (SRS) into the base station for a plurality of times; and sending the instruction information into the user terminal by the base station. According to the technical scheme, the user terminal can more effectively send the aperiodic SRS, thus saving the physical downlink control channel (PDCCH) resource, and improving the timeliness and the accuracy of channel measurement of the base station.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method of sending and receiving and device of indication information.
Background technology
Long Term Evolution (Long Term Evolution, referred to as LTE) uplink physical channel of system comprises Physical Random Access Channel (Physical Random Access Channel, referred to as PRACH), Physical Uplink Shared Channel (Physical uplink shared channel, referred to as PUSCH), Physical Uplink Control Channel (Physical uplink control channel is referred to as PUCCH).In LTE, Physical Downlink Control Channel (Physical downlink control channel is referred to as PDCCH) is used for carrying uplink and downlink schedule information, and uplink power control information.Base station (e-Node-B, referred to as eNB) can pass through Downlink Control Information configure user terminal (User Equipment, referred to as UE), perhaps terminal equipment is accepted the configuration of high-rise (higher layers), is also referred to as by high-level signaling and comes configuration UE.Downlink Control Information (Downlink Control Information is referred to as DCI) form (format) can be divided into DCI format 0,1,1A, 1B, 1C, 1D, 2,2A, 2B, 3,3A, 4 etc., wherein,
The scheduling of the Physical Uplink Shared Channel when DCI format 0 is used to indicate single antenna (Physical uplink shared channel is referred to as PUSCH);
DCI format 2,2A, 2B is used for the different transmission mode of descending PDSCH space division multiplexing;
DCI format 3,3A is used for the transmission of the power control instruction of Physical Uplink Control Channel (Physical uplink control channel is referred to as PUCCH) and PUSCH.
The scheduling of the Physical Uplink Shared Channel when DCI format 4 is used to indicate many antennas (Physical uplink shared channel is referred to as PUSCH);
Above-mentioned DCI format 0,1A, the transmission block size of 3,3A is the same, and wherein, DCI format 0,1A adopt 1 bit to carry out form and distinguish.
Measuring reference signals (Sounding Reference Signal is referred to as SRS) is the signal that is used for measuring radio channel information (Channel State Information is referred to as CSI) between a kind of terminal equipment and base station.In long evolving system, UE regularly sends uplink SRS at last data symbol that sends subframe according to the parameters such as bandwidth, frequency domain position, sequence cyclic shift, cycle and sub-frame offset of eNB indication.ENB judges the up CSI of UE according to the SRS that receives, and carries out the operations such as frequency domain selection scheduling, close-loop power control according to the CSI that obtains.
In the LTE system, the SRS sequence that UE sends is by to a root sequence
Carry out in time domain that cyclic shift α obtains.Same root sequence is carried out different cyclic shift α, just can access different SRS sequences, and mutually orthogonal between these SRS sequences that obtain, therefore, can use to different UE these SRS sequence allocation, to realize the code division multiple access between UE.In the LTE system, the SRS sequence definition 8 cyclic shift α, provide by following formula (1):
Wherein,
Signaling by 3bit is indicated, and is respectively 0,1,2,3,4,5,6 and 7.That is to say, under same running time-frequency resource, the UE in the residential quarter has 8 available code resources, and eNB can configure at most 8 UE and send simultaneously SRS on identical running time-frequency resource.Formula (1) can be regarded as the SRS sequence uniformly-spaced is divided into 8 parts in time domain, but because the SRS sequence length is 12 multiple, so the minimum length of SRS sequence is 24.
In the LTE system, the frequency domain bandwidth of SRS adopts tree to be configured.The corresponding tree structure of each SRS band width configuration (SRS bandwidth configuration), the SRS bandwidth (SRS-Bandwidth) of top (or being called ground floor) is to maximum SRS bandwidth that should the SRS band width configuration, or is called the SRS bandwidth range.UE is according to the indication of the signaling of base station, calculate the SRS bandwidth of self after, the top signaling frequency domain position n that sends according to eNB again
RRCDetermine that self sends the frequency domain initial position of SRS.Fig. 1 is the different n of the distribution of correlation technique
RRCUE send the frequency domain initial position schematic diagram of SRS, as shown in Figure 1, distributed different n
RRCUE will send SRS in the zones of different of residential quarter SRS bandwidth, wherein, UE1 is according to n
RRC=0 determines to send the frequency initial position of SRS, and UE2 is according to n
RRC=3 determine to send the frequency initial position of SRS, and UE3 is according to n
RRC=4 determine to send the frequency initial position of SRS, and UE4 is according to n
RRC=6 determine to send the frequency initial position of SRS.
The employed sequence of SRS is selected from the demodulation pilot frequency sequence group, when the SRS of UE bandwidth is 4 Resource Block (Resource Block, referred to as RB) time, using length is the sequence of the computer generation (Computer Generated is referred to as CG) of 2 RB; When the SRS of UE band is wider than 4 RB, use the Zadoff-Chu sequence of corresponding length.
In addition, in same SRS bandwidth, the subcarrier of SRS (sub-carrier) is that place at the interval, that is to say, pectinate texture is adopted in the transmission of SRS, the quantity of the frequency comb in the LTE system (frequency comb) is 2, and also the repeat factor value (Repetition Factor is referred to as RPF) corresponding to time domain is 2.Fig. 2 is the pectinate texture schematic diagram of the SRS of correlation technique, as shown in Figure 2, when each UE sends SRS, only uses in two frequency comb, comb=0 or comb=1.Like this, UE only uses the frequency domain index to send SRS as the subcarrier of even number or odd number according to the frequency comb comb position indication of the top signaling of 1 bit.This pectinate texture allows more UE to send SRS in same SRS bandwidth.
In same SRS bandwidth, a plurality of UE can use different cyclic shifts in same frequency comb, then send SRS by code division multiplexing, also can two UE on different frequency comb, send SRS by frequency division multiplexing.For example, in the LTE system, in certain SRS bandwidth (4 RB), send the UE of SRS, operable cyclic shift has 8, operable frequency comb is 2, UE always has 16 resources that can be used to send SRS thus, namely in this SRS bandwidth, can send simultaneously 16 SRS at most.Owing in the LTE system, not supporting uplink single user multiple-input and multiple-output (Single User Multiple Input Multiple Output, referred to as SU-MIMO), UE can only have an antenna to send SRS constantly at each, so a UE only needs a SRS resource, therefore, in above-mentioned SRS bandwidth, system at most can 16 UE of concurrent multiplexing.
Senior LTE (LTE-Advanced is referred to as LTE-A) system is the evolution system of future generation of LTE system, at up support SU-MIMO, and can use at most 4 antennas as up transmitting antenna.Be that UE can send SRS simultaneously at synchronization on many antennas, and eNB need to estimate state on every channel according to the SRS that receives on the every antenna.Descending control information format has increased format 4 and has been used for the Uplink MIMO transmission on the former formatted basis of LTE, and format 2C is used for the MIMO transmission of descending 8 antennas.
In the research of existing LTE-A version 10 (LTE-A Release 10), propose: in uplink communication, should use the SRS of non-precoding (being that antenna is proprietary), the DMRS of PUSCH is then carried out precoding.The base station can estimate up original CSI by receiving the SRS of non-precoding, has passed through precoding DMRS and then can not make the base station estimate up original CSI.At this moment, when UE used many antennas to send the SRS of non-precoding, the needed SRS resource of each UE can increase, also just caused in the system can concurrent multiplexing UE quantity descend.UE can send SRS by high-level signaling (be also referred to as by trigger type 0 and trigger) or these two kinds of triggering modes of Downlink Control Information (be also referred to as by trigger type 1 and trigger), based on the high-level signaling triggering is cycle SRS, based on the Downlink Control Information triggering is SRS aperiodic, although in LTE-A Release 10, increased the mode that sends SRS aperiodic, improved to a certain extent the utilance of SRS resource, improve the flexibility of scheduling of resource, but in following LTE-A version 11 (LTE-A Release 11) research, for power limited users, in order to guarantee the channel measurement quality, the SRS that the user can only repeatedly send the arrowband measures the channel in broadband.
Way according to present standard agreement, owing to SRS aperiodic that can only trigger with Downlink Control Information once at every turn, therefore the base station need to could allow the user repeatedly send aperiodic SRS to the Downlink Control Information that the user sends repeatedly, and the base station just can obtain up channel information by measuring SRS.Yet, this mode has increased the signaling consumption of Downlink Control Information, in the situation that community user quantity is larger, the multiplexing off-capacity of user of PDCCH might occur, thereby cause the base station in time to trigger SRS aperiodic to the user, and then have influence on the overall transfer performance of system.The base station is how more effective triggers SRS aperiodic to the user, improves promptness and the accuracy of channel measurement, is problem to be solved.
Summary of the invention
The invention provides a kind of method of sending and receiving and device of indication information, to solve at least in the correlation technique because the multiplexing off-capacity of user terminal of PDCCH causes user terminal can not effectively send the problem of SRS aperiodic.
A kind of sending method of indication information is provided according to an aspect of the present invention.
Sending method according to indication information of the present invention comprises: base station configuration indication information, and wherein, this indication information is used to indicate user terminal and whether sends repeatedly SRS aperiodic to the base station; The base station is issued to user terminal with indication information.
Preferably, when in the base station indication information being issued to user terminal, also comprise: the base station is triggered user terminal by Downlink Control Information and is sent SRS.
Preferably, above-mentioned indication information is carried in Downlink Control Information or the high-level signaling.
Preferably, above-mentioned indication information comprise following one of at least: be used to indicate user terminal and send repeatedly the indication information that aperiodic, whether SRS enabled; Be used to indicate the indication information that user terminal sends the frequency hopping bandwidth of SRS aperiodic; Be used to indicate the indication information that user terminal sends the duration of SRS aperiodic.
Preferably, when carrying the indication information of frequency hopping bandwidth in the indication information, repeatedly aperiodic SRS number of times be the ratio of the transmission bandwidth of frequency hopping bandwidth and SRS; Perhaps repeatedly aperiodic SRS number of times be the pre-configured number of times of high-level signaling.
A kind of method of reseptance of indication information is provided according to another aspect of the present invention.
Method of reseptance according to indication information of the present invention comprises: user terminal receives the indication information come from the base station, and wherein, this indication information is used to indicate user terminal and whether sends repeatedly measuring reference signals SRS aperiodic to the base station; User terminal determines whether to send repeatedly to the base station SRS aperiodic according to indication information.
Preferably, determine whether to send repeatedly to the base station aperiodic during SRS at user terminal according to indication information, also comprise: user terminal receives the Downlink Control Information that comes from the base station, and wherein, Downlink Control Information is used for triggering user terminal and sends SRS.
Preferably, above-mentioned indication information is carried in Downlink Control Information or the high-level signaling.
Preferably, when carrying the indication information of frequency hopping bandwidth in the indication information, repeatedly aperiodic SRS number of times be the ratio of the transmission bandwidth of frequency hopping bandwidth and SRS; Perhaps repeatedly aperiodic SRS number of times be the pre-configured number of times of high-level signaling.
Preferably, above-mentioned indication information comprise following one of at least: be used to indicate user terminal and send repeatedly the indication information that aperiodic, whether SRS enabled; Be used to indicate the indication information that user terminal sends the frequency hopping bandwidth of SRS aperiodic; Be used to indicate the indication information that user terminal sends the duration of SRS aperiodic.
Preferably, user terminal judges whether to send repeatedly to the base station aperiodic SRS according to indication information and comprises: send repeatedly indication information that aperiodic, whether SRS enabled and be designated as when enabling when being used to indicate user terminal, user terminal sends repeatedly SRS aperiodic to the base station.
Preferably, user terminal judges whether to send repeatedly to the base station aperiodic SRS according to indication information and comprises: when the band of the indication information indication of frequency hopping bandwidth was wider than the transmission bandwidth of SRS, user terminal sent repeatedly SRS aperiodic to the base station.
Preferably, user terminal judges whether to send repeatedly to the base station aperiodic SRS according to indication information and comprises: when the indication information of duration was preset value, user terminal sent repeatedly SRS aperiodic to the base station.
A kind of dispensing device of indication information is provided according to another aspect of the invention.
Dispensing device according to indication information of the present invention comprises: configuration module, be used for the configuration indication information, and wherein, this indication information is used to indicate user terminal and whether sends repeatedly SRS aperiodic to the base station; Issue module, be used for indication information is issued to user terminal.
Preferably, said apparatus also comprises: trigger module is used for triggering user terminal by Downlink Control Information and sends SRS.
A kind of receiving system of indication information is provided in accordance with a further aspect of the present invention.
Receiving system according to indication information of the present invention comprises: the first receiver module, be used for to receive the indication information that comes from the base station, and wherein, this indication information is used to indicate user terminal and whether sends repeatedly SRS aperiodic to the base station; Determination module is used for determining whether to send repeatedly to the base station SRS aperiodic according to indication information.
Preferably, said apparatus also comprises: the second receiver module, be used for receiving the Downlink Control Information that comes from the base station, and wherein, Downlink Control Information is used for triggering user terminal and sends SRS.
Preferably, determination module is used for sending repeatedly indication information that aperiodic, whether SRS enabled and being designated as when enabling when being used to indicate user terminal, sends repeatedly SRS aperiodic to the base station; When the band of the indication information of frequency hopping bandwidth indication is wider than the transmission bandwidth of SRS, send repeatedly SRS aperiodic to the base station; When the indication information of duration is preset value, send repeatedly SRS aperiodic to the base station.
By the present invention, adopt the base station to issue to user terminal and be used to indicate whether user terminal sends repeatedly indication information from measuring reference signals SRS aperiodic to described base station, user terminal sends repeatedly SRS aperiodic according to the indication information that the base station issues to the base station, solved in the correlation technique because the multiplexing off-capacity of user terminal of PDCCH causes user terminal can not effectively send the problem of SRS aperiodic, and then reached user terminal and more effectively sent SRS aperiodic, save the PDCCH resource, improve the promptness of base station measurement channel and the effect of accuracy.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is according to the different n of the distribution of correlation technique
RRCUE send the frequency domain initial position schematic diagram of SRS;
Fig. 2 is the pectinate texture schematic diagram according to the SRS of correlation technique;
Fig. 3 is the flow chart according to the sending method of the indication information of the embodiment of the invention;
Fig. 4 is the flow chart according to the method for reseptance of the indication information of the embodiment of the invention;
Fig. 5 is the structured flowchart according to the dispensing device of the indication information of the embodiment of the invention;
Fig. 6 is the structured flowchart of the dispensing device of indication information according to the preferred embodiment of the invention;
Fig. 7 is the structured flowchart according to the receiving system of the indication information of the embodiment of the invention; And
Fig. 8 is the structured flowchart of the receiving system of indication information according to the preferred embodiment of the invention.
Embodiment
Hereinafter also describe in conjunction with the embodiments the present invention in detail with reference to accompanying drawing.Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.
Fig. 3 is the flow chart according to the sending method of the indication information of the embodiment of the invention.As shown in Figure 3, the method mainly comprises following processing:
Step S302: base station configuration indication information, wherein, this indication information is used to indicate user terminal and whether sends repeatedly SRS aperiodic to the base station;
Step S304: the base station is issued to user terminal with indication information.
In the correlation technique, because the multiplexing off-capacity of user terminal of PDCCH causes user terminal can not effectively send SRS aperiodic.Adopt method as shown in Figure 3, adopt the base station to issue to user terminal and be used to indicate whether user terminal sends repeatedly indication information from measuring reference signals SRS aperiodic to described base station, solved in the correlation technique because the multiplexing off-capacity of user terminal of PDCCH causes user terminal can not effectively send the problem of SRS aperiodic, and then reached user terminal and more effectively sent SRS aperiodic, save the PDCCH resource, improve the promptness of base station measurement channel and the effect of accuracy.
Preferably, when in step S304 base station indication information being issued to user terminal, can also comprise: the base station is triggered user terminal by Downlink Control Information and is sent SRS.
In preferred implementation process, above-mentioned indication information can be carried in Downlink Control Information or the high-level signaling.
In a preferred embodiment, indication information can be configured in the base station and be used for the triggering user terminal to the Downlink Control Information of base station transmission SRS aperiodic to what user terminal sent, also can separately indication information be configured in the high-level signaling, indication information can also be configured in other information except Downlink Control Information or high-level signaling.
Preferably, above-mentioned indication information can include but not limited to following one of at least:
(1) is used to indicate user terminal and sends repeatedly the indication information that aperiodic, whether SRS enabled;
In a preferred embodiment, when sending repeatedly SRS enable instruction indication aperiodic and enable, user terminal whenever receives the triggering signaling that once comes from the base station, just can send repeatedly to the base station SRS aperiodic; When sending repeatedly SRS enable instruction indication aperiodic and do not enable, user terminal whenever receives the triggering signaling that once comes from the base station, then only send to the base station one time aperiodic SRS.
(2) be used to indicate the indication information that user terminal sends the frequency hopping bandwidth of SRS aperiodic;
In a preferred embodiment, when the indicated band of frequency hopping bandwidth indication information that is used to indicate user terminal and sends repeatedly SRS aperiodic is wider than the transmission bandwidth of SRS, user terminal whenever receives the triggering signaling that once comes from the base station, just can send repeatedly to the base station SRS aperiodic; When being used to indicate user terminal and sending repeatedly the indicated bandwidth of the frequency hopping bandwidth indication information of SRS aperiodic less than the transmission bandwidth of SRS, then only send to the base station one time aperiodic SRS.
(3) be used to indicate the indication information that user terminal sends the duration of SRS aperiodic.
In a preferred embodiment, when the indication information that is used to indicate user terminal and sends repeatedly the duration of SRS aperiodic was the first preset value, user terminal whenever received once from the triggering signaling of base station, just can send repeatedly to the base station SRS aperiodic; When the indication information that is used to indicate user terminal and sends repeatedly the duration of SRS aperiodic is the second preset value, then only send to the base station one time aperiodic SRS.
Need to prove, the number of bits that needs according to setting in advance that arranges of the first preset value and the second preset value is determined.For example: if only use 1 bit to represent the indication information of duration, then be 1 when (perhaps 0) when the first preset value, user terminal whenever receives the triggering signaling that once comes from the base station, just can send repeatedly to the base station SRS aperiodic; When the second preset value is 0 when (perhaps 1), then only send to the base station one time aperiodic SRS.Certainly, can also use 2 bits, 3 bits ... represent the indication information of duration, its processing method is identical, repeats no more herein.
Preferably, when user terminal sends repeatedly aperiodic during SRS to the base station, the number of times that sends SRS can have but be not limited to following two kinds of definite modes:
Mode one, when carrying the indication information of frequency hopping bandwidth in the indication information, repeatedly aperiodic SRS number of times can be the ratio of the transmission bandwidth of frequency hopping bandwidth and SRS;
Mode two, repeatedly aperiodic SRS number of times can be the pre-configured number of times of high-level signaling.
Fig. 4 is the flow chart according to the method for reseptance of the indication information of the embodiment of the invention.As shown in Figure 4, the method mainly comprises following processing:
Step S402: user terminal receives the indication information come from the base station, and wherein, this indication information is used to indicate user terminal and whether sends repeatedly measuring reference signals SRS aperiodic to the base station;
Step S404: user terminal determines whether to send repeatedly to the base station SRS aperiodic according to indication information.
Adopt method as shown in Figure 4, solved in the correlation technique because the multiplexing off-capacity of user terminal of PDCCH causes user terminal can not effectively send the problem of SRS aperiodic, and then reached user terminal and more effectively sent SRS aperiodic, save the PDCCH resource, improve the promptness of base station measurement channel and the effect of accuracy.
Preferably, at step S404, user terminal determines whether to send repeatedly to the base station aperiodic during SRS according to indication information, and can also comprise: user terminal receives the Downlink Control Information that comes from the base station, wherein, this Downlink Control Information is used for triggering user terminal transmission SRS.
In preferred implementation process, above-mentioned indication information can be carried in Downlink Control Information or the high-level signaling.
Preferably, when user terminal sends repeatedly aperiodic during SRS to the base station, the number of times that sends SRS can have but be not limited to following two kinds of definite modes:
Mode one, when carrying the indication information of frequency hopping bandwidth in the indication information, repeatedly aperiodic SRS number of times can be the ratio of the transmission bandwidth of frequency hopping bandwidth and SRS;
Mode two, repeatedly aperiodic SRS number of times can be the pre-configured number of times of high-level signaling.
Preferably, above-mentioned indication information can include but not limited to following one of at least:
(1) is used to indicate user terminal and sends repeatedly the indication information that aperiodic, whether SRS enabled;
(2) be used to indicate the indication information that user terminal sends the frequency hopping bandwidth of SRS aperiodic;
(3) be used to indicate the indication information that user terminal sends the duration of SRS aperiodic.
Preferably, in step S404, user terminal judges whether to send repeatedly to the base station aperiodic SRS according to indication information can comprise following operation: send repeatedly indication information that aperiodic, whether SRS enabled and be designated as when enabling when being used to indicate user terminal, user terminal sends repeatedly SRS aperiodic to the base station.
In a preferred embodiment, the base station can be triggered user terminal by Downlink Control Information and be sent SRS, and issue the configuration information of SRS to user terminal, wherein, this configuration information can comprise: be used to indicate user terminal and send repeatedly the indication information that aperiodic, whether SRS enabled and the times N that sends SRS.When sending repeatedly SRS enable instruction indication aperiodic and enable, user terminal whenever receives the triggering signaling that once comes from the base station, just can send repeatedly to the base station aperiodic SRS and the number of times that sends SRS be N, can send SRS at the initial frequency domain of fixing initial frequency domain position or constantly conversion, thereby improve the accuracy of channel measurement, realize measuring the purpose of broad-band channel information.When sending repeatedly SRS enable instruction indication aperiodic and do not enable, user terminal whenever receives the triggering signaling that once comes from the base station, then only sends SRS once to the base station.
Preferably, in step S404, user terminal judges whether to send repeatedly to the base station aperiodic SRS according to indication information can comprise following operation: when the band of the indication information indication of frequency hopping bandwidth was wider than the transmission bandwidth of SRS, user terminal sent repeatedly SRS aperiodic to the base station.
In a preferred embodiment, the base station can be triggered user terminal by Downlink Control Information and be sent SRS, and issue the configuration information of SRS to user terminal, wherein, this configuration information can comprise: be used to indicate user terminal and send repeatedly indication information that aperiodic, whether SRS enabled and the indication information of frequency hopping bandwidth.When sending repeatedly SRS enable instruction indication aperiodic and enable, user terminal whenever receives the triggering signaling that once comes from the base station, just can send repeatedly to the base station aperiodic SRS and send the number of times of SRS aperiodic can be for: the ratio of the transmission bandwidth of frequency hopping bandwidth and SRS or by the transmission times of the pre-configured SRS of high-level signaling.When sending repeatedly SRS enable instruction indication aperiodic and do not enable, user terminal whenever receives the triggering signaling that once comes from the base station, then only send to the base station one time aperiodic SRS.
In a preferred embodiment, the base station can be triggered user terminal by Downlink Control Information and be sent SRS, and issues the configuration information of SRS to user terminal, and wherein, this configuration information can comprise: the indication information of frequency hopping bandwidth.When the indicated band of frequency hopping bandwidth indication information is wider than the transmission bandwidth of SRS, user terminal whenever receives the triggering signaling that once comes from the base station, and just can send to the base station SRS repeatedly and send the number of times of SRS can be for: the ratio of the transmission bandwidth of frequency hopping bandwidth and SRS or by the transmission times of the pre-configured SRS of high-level signaling.When the indicated bandwidth of frequency hopping bandwidth indication information during less than the transmission bandwidth of SRS, then only send SRS once to the base station.
Preferably, in step S404, user terminal judges whether to send repeatedly to the base station aperiodic SRS according to indication information can comprise following operation: when the indication information of duration was preset value, user terminal sent repeatedly SRS aperiodic to the base station.
In a preferred embodiment, the base station can be triggered user terminal by Downlink Control Information and be sent SRS, and issues the configuration information of SRS to user terminal, and wherein, this configuration information can comprise: the indication information of frequency hopping bandwidth and the indication information of duration.When the indication information of duration is 1 (or 0), user terminal whenever receives the triggering signaling that once comes from the base station, and just can send to the base station SRS repeatedly and send the number of times of SRS can be for: the ratio of the transmission bandwidth of frequency hopping bandwidth and SRS or by the transmission times of the pre-configured SRS of high-level signaling.When the indication information of duration is 0 (or 1), then only send SRS once to the base station.
Fig. 5 is the structured flowchart according to the dispensing device of the indication information of the embodiment of the invention.As shown in Figure 5, the dispensing device of this indication information mainly comprises: configuration module 10, be used for the configuration indication information, and wherein, this indication information is used to indicate user terminal and whether sends repeatedly SRS aperiodic to the base station; Issue module 20, be used for indication information is issued to user terminal.
Adopt device shown in Figure 5, user terminal can send SRS aperiodic more effectively, has saved the PDCCH resource, has improved promptness and the accuracy of base station measurement channel.
Preferably, as shown in Figure 6, said apparatus can also comprise: trigger module 30 is used for triggering user terminal by Downlink Control Information and sends SRS.
In preferred implementation process, above-mentioned indication information can be carried in Downlink Control Information or the high-level signaling.
Preferably, above-mentioned indication information can include but not limited to following one of at least:
(1) is used to indicate user terminal and sends repeatedly the indication information that aperiodic, whether SRS enabled;
(2) be used to indicate the indication information that user terminal sends the frequency hopping bandwidth of SRS aperiodic;
(3) be used to indicate the indication information that user terminal sends the duration of SRS aperiodic.
Preferably, when user terminal sends repeatedly aperiodic during SRS to the base station, the number of times that sends SRS can have but be not limited to following two kinds of definite modes:
Mode one, when carrying the indication information of frequency hopping bandwidth in the indication information, repeatedly aperiodic SRS number of times can be the ratio of the transmission bandwidth of frequency hopping bandwidth and SRS;
Mode two, repeatedly aperiodic SRS number of times can be the pre-configured number of times of high-level signaling.
Fig. 7 is the structured flowchart according to the receiving system of the indication information of the embodiment of the invention.As shown in Figure 7, the receiving system of this indication information mainly comprises: the first receiver module 40, be used for to receive the indication information that comes from the base station, and wherein, this indication information is used to indicate user terminal and whether sends repeatedly SRS aperiodic to the base station; Determination module 50 is used for determining whether to send repeatedly to the base station SRS aperiodic according to indication information.
Adopt device shown in Figure 7, user terminal can send SRS aperiodic more effectively, has saved the PDCCH resource, has improved promptness and the accuracy of base station measurement channel.
Preferably, as shown in Figure 8, said apparatus can also comprise: the second receiver module 60, be used for receiving the Downlink Control Information that comes from the base station, and wherein, this Downlink Control Information is used for triggering user terminal and sends SRS.
In preferred implementation process, above-mentioned indication information can be carried in Downlink Control Information or the high-level signaling.
Preferably, when user terminal sends repeatedly aperiodic during SRS to the base station, the number of times that sends SRS can have but be not limited to following two kinds of definite modes:
Mode one, when carrying the indication information of frequency hopping bandwidth in the indication information, repeatedly aperiodic SRS number of times can be the ratio of the transmission bandwidth of frequency hopping bandwidth and SRS;
Mode two, repeatedly aperiodic SRS number of times can be the pre-configured number of times of high-level signaling.
Preferably, above-mentioned indication information can include but not limited to following one of at least:
(1) is used to indicate user terminal and sends repeatedly the indication information that aperiodic, whether SRS enabled;
(2) be used to indicate the indication information that user terminal sends the frequency hopping bandwidth of SRS aperiodic;
(3) be used to indicate the indication information that user terminal sends the duration of SRS aperiodic.
Preferably, above-mentioned determination module 50 is used for sending repeatedly indication information that aperiodic, whether SRS enabled and being designated as when enabling when being used to indicate user terminal, sends repeatedly SRS aperiodic to the base station; When the band of indication information indication that is used to indicate user terminal and sends repeatedly the frequency hopping bandwidth of SRS aperiodic is wider than the transmission bandwidth of SRS, send repeatedly SRS aperiodic to the base station; When the indication information that is used to indicate user terminal and sends repeatedly the duration of SRS aperiodic is preset value, send repeatedly SRS aperiodic to the base station.
Need to prove, the preferred working method that modules mutually combines among Fig. 5 to Fig. 8 can referring to Fig. 3 to preferred embodiment shown in Figure 4, repeat no more herein.
From above description, can find out, above-described embodiment has been realized following technique effect (need to prove that these effects are effects that some preferred embodiment can reach): user terminal can send SRS aperiodic more effectively, save the PDCCH resource, improve promptness and the accuracy of base station measurement channel.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. the sending method of an indication information is characterized in that, comprising:
Base station configuration indication information, wherein, described indication information is used to indicate user terminal and whether sends repeatedly measuring reference signals SRS aperiodic to described base station;
Described base station is issued to described user terminal with described indication information.
2. method according to claim 1 is characterized in that, when in described base station described indication information being issued to described user terminal, also comprises:
Described base station is triggered described user terminal by Downlink Control Information and is sent SRS.
3. method according to claim 1 is characterized in that, described indication information is carried in Downlink Control Information or the high-level signaling.
4. each described method in 3 according to claim 1 is characterized in that, described indication information comprise following one of at least:
Be used to indicate described user terminal and send repeatedly the indication information that aperiodic, whether SRS enabled;
Be used to indicate the indication information that described user terminal sends the frequency hopping bandwidth of SRS aperiodic;
Be used to indicate the indication information that described user terminal sends the duration of SRS aperiodic.
5. each described method in 3 according to claim 1 is characterized in that,
When carrying the indication information of frequency hopping bandwidth in the described indication information, described repeatedly aperiodic, the number of times of SRS was the ratio of the transmission bandwidth of described frequency hopping bandwidth and SRS; Perhaps
Described repeatedly aperiodic, the number of times of SRS was the pre-configured number of times of high-level signaling.
6. the method for reseptance of an indication information is characterized in that, comprising:
User terminal receives the indication information come from the base station, and wherein, described indication information is used to indicate user terminal and whether sends repeatedly measuring reference signals SRS aperiodic to described base station;
Described user terminal determines whether to described base station transmission described repeatedly aperiodic of SRS according to described indication information.
7. method according to claim 6 is characterized in that, when described user terminal determines whether to described base station transmission described repeatedly aperiodic of SRS according to described indication information, also comprises:
Described user terminal receives the Downlink Control Information that comes from described base station, and wherein, described Downlink Control Information is used for triggering described user terminal and sends SRS.
8. method according to claim 6 is characterized in that, described indication information is carried in Downlink Control Information or the high-level signaling.
9. each described method in 8 according to claim 6 is characterized in that,
When carrying the indication information of frequency hopping bandwidth in the described indication information, described repeatedly aperiodic, the number of times of SRS was the ratio of the transmission bandwidth of described frequency hopping bandwidth and SRS; Perhaps
Described repeatedly aperiodic, the number of times of SRS was the pre-configured number of times of high-level signaling.
10. each described method in 8 according to claim 6 is characterized in that, described indication information comprise following one of at least:
Be used to indicate described user terminal and send repeatedly the indication information that aperiodic, whether SRS enabled;
Be used to indicate the indication information that described user terminal sends the frequency hopping bandwidth of SRS aperiodic;
Be used to indicate the indication information that described user terminal sends the duration of SRS aperiodic.
11. method according to claim 10 is characterized in that, described user terminal judges whether to comprise to described base station transmission described repeatedly aperiodic of SRS according to described indication information:
Be used to indicate described user terminal and send repeatedly indication information that aperiodic, whether SRS enabled and be designated as when enabling when described, described user terminal sends described repeatedly aperiodic of SRS to described base station.
12. method according to claim 10 is characterized in that, described user terminal judges whether to comprise to described base station transmission described repeatedly aperiodic of SRS according to described indication information:
When the band of the indication information of described frequency hopping bandwidth indication was wider than the transmission bandwidth of SRS, described user terminal sent described repeatedly aperiodic of SRS to described base station.
13. method according to claim 10 is characterized in that, described user terminal judges whether to comprise to described base station transmission described repeatedly aperiodic of SRS according to described indication information:
When the indication information of described duration was preset value, described user terminal was to described base station transmission described repeatedly aperiodic of SRS.
14. the dispensing device of an indication information is characterized in that, comprising:
Configuration module is used for the configuration indication information, and wherein, described indication information is used to indicate user terminal and whether sends repeatedly measuring reference signals SRS aperiodic to described base station;
Issue module, be used for described indication information is issued to described user terminal.
15. device according to claim 14 is characterized in that, described device also comprises:
Trigger module is used for triggering described user terminal by Downlink Control Information and sends SRS.
16. the receiving system of an indication information is characterized in that, comprising:
The first receiver module be used for to receive the indication information that comes from the base station, and wherein, described indication information is used to indicate user terminal and whether sends repeatedly measuring reference signals SRS aperiodic to described base station;
Determination module is used for determining whether to described base station transmission described repeatedly aperiodic of SRS according to described indication information.
17. device according to claim 16 is characterized in that, described device also comprises:
The second receiver module is used for receiving the Downlink Control Information that comes from described base station, and wherein, described Downlink Control Information is used for triggering described user terminal and sends SRS.
18. device according to claim 16 is characterized in that,
Described determination module is used for being used to indicate described user terminal and sending repeatedly indication information that aperiodic, whether SRS enabled and be designated as when enabling when described, sends described repeatedly aperiodic of SRS to described base station; When the band of the indication information of described frequency hopping bandwidth indication is wider than the transmission bandwidth of SRS, send described repeatedly aperiodic of SRS to described base station; When the indication information of described duration is preset value, to described base station transmission described repeatedly aperiodic of SRS.
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